diff options
Diffstat (limited to 'drivers/net')
-rw-r--r-- | drivers/net/ethernet/intel/ixgbe/ixgbe.h | 1 | ||||
-rw-r--r-- | drivers/net/ethernet/intel/ixgbe/ixgbe_main.c | 8 | ||||
-rw-r--r-- | drivers/net/ethernet/intel/ixgbe/ixgbe_sriov.c | 129 | ||||
-rw-r--r-- | drivers/net/ethernet/intel/ixgbe/ixgbe_sriov.h | 1 |
4 files changed, 45 insertions, 94 deletions
diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe.h b/drivers/net/ethernet/intel/ixgbe/ixgbe.h index 5a286adc65c..eb592822867 100644 --- a/drivers/net/ethernet/intel/ixgbe/ixgbe.h +++ b/drivers/net/ethernet/intel/ixgbe/ixgbe.h @@ -130,7 +130,6 @@ struct vf_data_storage { u16 tx_rate; u16 vlan_count; u8 spoofchk_enabled; - struct pci_dev *vfdev; }; struct vf_macvlans { diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c index 24f2b455a23..9c42679ad83 100644 --- a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c +++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c @@ -7452,13 +7452,7 @@ static void __devexit ixgbe_remove(struct pci_dev *pdev) if (netdev->reg_state == NETREG_REGISTERED) unregister_netdev(netdev); - if (adapter->flags & IXGBE_FLAG_SRIOV_ENABLED) { - if (!(ixgbe_check_vf_assignment(adapter))) - ixgbe_disable_sriov(adapter); - else - e_dev_warn("Unloading driver while VFs are assigned " - "- VFs will not be deallocated\n"); - } + ixgbe_disable_sriov(adapter); ixgbe_clear_interrupt_scheme(adapter); diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_sriov.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_sriov.c index 593fdd54f9a..47b2ce740ec 100644 --- a/drivers/net/ethernet/intel/ixgbe/ixgbe_sriov.c +++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_sriov.c @@ -44,40 +44,6 @@ #include "ixgbe_sriov.h" #ifdef CONFIG_PCI_IOV -static int ixgbe_find_enabled_vfs(struct ixgbe_adapter *adapter) -{ - struct pci_dev *pdev = adapter->pdev; - struct pci_dev *pvfdev; - u16 vf_devfn = 0; - int device_id; - int vfs_found = 0; - - switch (adapter->hw.mac.type) { - case ixgbe_mac_82599EB: - device_id = IXGBE_DEV_ID_82599_VF; - break; - case ixgbe_mac_X540: - device_id = IXGBE_DEV_ID_X540_VF; - break; - default: - device_id = 0; - break; - } - - vf_devfn = pdev->devfn + 0x80; - pvfdev = pci_get_device(PCI_VENDOR_ID_INTEL, device_id, NULL); - while (pvfdev) { - if (pvfdev->devfn == vf_devfn && - (pvfdev->bus->number >= pdev->bus->number)) - vfs_found++; - vf_devfn += 2; - pvfdev = pci_get_device(PCI_VENDOR_ID_INTEL, - device_id, pvfdev); - } - - return vfs_found; -} - void ixgbe_enable_sriov(struct ixgbe_adapter *adapter, const struct ixgbe_info *ii) { @@ -86,7 +52,7 @@ void ixgbe_enable_sriov(struct ixgbe_adapter *adapter, struct vf_macvlans *mv_list; int pre_existing_vfs = 0; - pre_existing_vfs = ixgbe_find_enabled_vfs(adapter); + pre_existing_vfs = pci_num_vf(adapter->pdev); if (!pre_existing_vfs && !adapter->num_vfs) return; @@ -205,14 +171,46 @@ void ixgbe_enable_sriov(struct ixgbe_adapter *adapter, "SRIOV disabled\n"); ixgbe_disable_sriov(adapter); } -#endif /* #ifdef CONFIG_PCI_IOV */ +static bool ixgbe_vfs_are_assigned(struct ixgbe_adapter *adapter) +{ + struct pci_dev *pdev = adapter->pdev; + struct pci_dev *vfdev; + int dev_id; + + switch (adapter->hw.mac.type) { + case ixgbe_mac_82599EB: + dev_id = IXGBE_DEV_ID_82599_VF; + break; + case ixgbe_mac_X540: + dev_id = IXGBE_DEV_ID_X540_VF; + break; + default: + return false; + } + + /* loop through all the VFs to see if we own any that are assigned */ + vfdev = pci_get_device(PCI_VENDOR_ID_INTEL, dev_id, NULL); + while (vfdev) { + /* if we don't own it we don't care */ + if (vfdev->is_virtfn && vfdev->physfn == pdev) { + /* if it is assigned we cannot release it */ + if (vfdev->dev_flags & PCI_DEV_FLAGS_ASSIGNED) + return true; + } + + vfdev = pci_get_device(PCI_VENDOR_ID_INTEL, dev_id, vfdev); + } + + return false; +} + +#endif /* #ifdef CONFIG_PCI_IOV */ void ixgbe_disable_sriov(struct ixgbe_adapter *adapter) { struct ixgbe_hw *hw = &adapter->hw; u32 gpie; u32 vmdctl; - int i; /* set num VFs to 0 to prevent access to vfinfo */ adapter->num_vfs = 0; @@ -230,6 +228,15 @@ void ixgbe_disable_sriov(struct ixgbe_adapter *adapter) return; #ifdef CONFIG_PCI_IOV + /* + * If our VFs are assigned we cannot shut down SR-IOV + * without causing issues, so just leave the hardware + * available but disabled + */ + if (ixgbe_vfs_are_assigned(adapter)) { + e_dev_warn("Unloading driver while VFs are assigned - VFs will not be deallocated\n"); + return; + /* disable iov and allow time for transactions to clear */ pci_disable_sriov(adapter->pdev); #endif @@ -254,12 +261,6 @@ void ixgbe_disable_sriov(struct ixgbe_adapter *adapter) /* take a breather then clean up driver data */ msleep(100); - /* Release reference to VF devices */ - for (i = 0; i < adapter->num_vfs; i++) { - if (adapter->vfinfo[i].vfdev) - pci_dev_put(adapter->vfinfo[i].vfdev); - } - adapter->flags &= ~IXGBE_FLAG_SRIOV_ENABLED; } @@ -493,28 +494,11 @@ static int ixgbe_set_vf_macvlan(struct ixgbe_adapter *adapter, return 0; } -int ixgbe_check_vf_assignment(struct ixgbe_adapter *adapter) -{ -#ifdef CONFIG_PCI_IOV - int i; - for (i = 0; i < adapter->num_vfs; i++) { - if (adapter->vfinfo[i].vfdev->dev_flags & - PCI_DEV_FLAGS_ASSIGNED) - return true; - } -#endif - return false; -} - int ixgbe_vf_configuration(struct pci_dev *pdev, unsigned int event_mask) { unsigned char vf_mac_addr[6]; struct ixgbe_adapter *adapter = pci_get_drvdata(pdev); unsigned int vfn = (event_mask & 0x3f); - struct pci_dev *pvfdev; - unsigned int device_id; - u16 thisvf_devfn = (pdev->devfn + 0x80 + (vfn << 1)) | - (pdev->devfn & 1); bool enable = ((event_mask & 0x10000000U) != 0); @@ -527,31 +511,6 @@ int ixgbe_vf_configuration(struct pci_dev *pdev, unsigned int event_mask) * for it later. */ memcpy(adapter->vfinfo[vfn].vf_mac_addresses, vf_mac_addr, 6); - - switch (adapter->hw.mac.type) { - case ixgbe_mac_82599EB: - device_id = IXGBE_DEV_ID_82599_VF; - break; - case ixgbe_mac_X540: - device_id = IXGBE_DEV_ID_X540_VF; - break; - default: - device_id = 0; - break; - } - - pvfdev = pci_get_device(PCI_VENDOR_ID_INTEL, device_id, NULL); - while (pvfdev) { - if (pvfdev->devfn == thisvf_devfn) - break; - pvfdev = pci_get_device(PCI_VENDOR_ID_INTEL, - device_id, pvfdev); - } - if (pvfdev) - adapter->vfinfo[vfn].vfdev = pvfdev; - else - e_err(drv, "Couldn't find pci dev ptr for VF %4.4x\n", - thisvf_devfn); } return 0; diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_sriov.h b/drivers/net/ethernet/intel/ixgbe/ixgbe_sriov.h index 2ab38d5fda9..1be1d30e4e7 100644 --- a/drivers/net/ethernet/intel/ixgbe/ixgbe_sriov.h +++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_sriov.h @@ -42,7 +42,6 @@ int ixgbe_ndo_get_vf_config(struct net_device *netdev, int vf, struct ifla_vf_info *ivi); void ixgbe_check_vf_rate_limit(struct ixgbe_adapter *adapter); void ixgbe_disable_sriov(struct ixgbe_adapter *adapter); -int ixgbe_check_vf_assignment(struct ixgbe_adapter *adapter); #ifdef CONFIG_PCI_IOV void ixgbe_enable_sriov(struct ixgbe_adapter *adapter, const struct ixgbe_info *ii); |